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Search for radiative penguin decays B+ → ρ+γ,B0 → ρ0γ, and B0 → ωγ

Physical Review Letters 94:1 (2005)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, JM Gaillard, A Hicheur, Y Karyotakis, JP Lees, V Tisserand, A Zghiche, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, VG Shelkov, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, M Steinke, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, FF Wilson, T Cuhadar-Donszelmann, C Hearty, NS Knecht, TS Mattison, JA McKenna, D Thiessen, A Khan, P Kyberd, L Teodorescu, AE Blinov, VE Blinov, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, SD Foulkes, JW Gary

Abstract:

A search for the decays B → ρ(770)γ and B0 → ω(782)γ is performed on a sample of 211 × 106 Y(45) → BB̄ events collected by the BABAR detector at the SLAC PEP-II asymmetric-energy e+ e- storage ring. No evidence for the decays is seen. We set the following limits on the individual branching fractions: ℬ(B+ → rho;+γ] < 1.8 × 10-6, ℬ(B0 → ρ0γ < 0.4 × 10-6, and Bscr;(B0 → ωγ) < 1.0 × 10-6 at the 90% confidence level. We use the quark model to limit the combined branching fraction Bscr;̄[B → (ρ/ω) γ] < 1.2 × 10-6, from which we determine a constraint on the ratio of Cabibbo-Kobayashi-Maskawa matrix elements |Vtd|/ |Vts|. © 2005 The American Physical Society.
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Measurement of the ratio B(B- → D*0K -)/B(B → D*0π-) and of the CP asymmetry of B- → D*CP+0K - decays

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:3 (2005)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges-Pous, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, T Schroeder, M Steinke, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, FF Wilson, T Cuhadar-Donszelmann, C Hearty, NS Knecht, TS Mattison, JA McKenna, D Thiessen, A Khan, P Kyberd, L Teodorescu, AE Blinov, VE Blinov, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, AJR Weinstein, SD Foulkes

Abstract:

We study the decays B- → D*0π - and B-→ D*0K-, where the D*0 decays into D0π0, with the D0 reconstructed in the CP-even (CP+) eigenstates K-K + and π-π+ and in the (non-CP) channels K-π+, K -π+π+π-, and K -π+π0. Using a sample of about 123 × 106 BB̄ pairs, we measure the ratios of decay rates R*non-CP ≡ B(B- → D* non-CP0K-)/B(B- → D*non-CP0π-) = 0.086 ± 0.0040(stat)-0.0031+0.0042(syst), and provide the first measurements of R*CP+ ≡ B(B- → D*CP+0K-)/B(B- → D*CP+0π-) = 0.0086 ± 0.021(stat) ± 0.007(syst), and of the CP asymmetry A*CP+ ≡ B(B- → D*CP+0K -)-B(B+ → D*CP+0K +)/B(B- → D*CP+0K -)+B(B+ → D*CP+0K +) = 0.10 ± 0.23(stat)-0.04+0.03(syst). © 2005 The American Physical Society.
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Search for a charged partner of the X(3872) in the B meson decay B → X-K, X- → J/ψπ-π0

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:3 (2005)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges-Pous, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, T Schroeder, M Steinke, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, FF Wilson, T Cuhadar-Donszelmann, C Hearty, NS Knecht, TS Mattison, JA McKenna, D Thiessen, A Khan, P Kyberd, L Teodorescu, AE Blinov, VE Blinov, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, AJR Weinstein, SD Foulkes

Abstract:

We search for a charged partner of the X(3872) in the decay B → X - K, X- → J/ψπ-π0, using 234 × 106 BB events collected at the Y(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring. The resulting product branching fraction upper limits are B(B 0 → X- K+, X- → J/ψπ-π0) < 5.4 × 10-6 and B(B- → X-K̄0, X- → J/ψπ-π0) < 22 × 10-6 at the 90% confidence level. © 2005 The American Physical Society.
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Time-integrated and time-dependent angular analyses of B → J/ψKπ: A measurement of cos2β with no sign ambiguity from strong phases

Physical Review D - Particles, Fields, Gravitation and Cosmology 71:3 (2005)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, JM Gaillard, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, VG Shelkov, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, M Steinke, JT Boyd, N Chevalier, WN Cottingham, MP Kelly, TE Latham, FF Wilson, T Cuhadar-Donszelmann, C Hearty, NS Knecht, TS Mattison, JA McKenna, D Thiessen, A Khan, P Kyberd, L Teodorescu, AE Blinov, VE Blinov, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, SD Foulkes, JW Gary

Abstract:

We present results on B → J/ψKπ decays using e+ e- annihilation data collected with the BABAR detector at the Y(4S) resonance. The detector is located at the PEP-II asymmetric-energy storage ring facility at the Stanford Linear Accelerator Center. Using approximately 88 × 106 BB̄ pairs, we measure the decay amplitudes for the flavor eigenmodes and observe strong-phase differences indicative of final-state interactions with a significance of 7.6 standard deviations. We use the interference between the Kπ S-wave and P-wave amplitudes in the region of the K*(892) to resolve the ambiguity in the determination of these strong phases. We then perform an ambiguity-free measurement of cos2β using the angular and time-dependent asymmetry in B → J/ψK* 0(KS0π0) decays. With sin2β fixed at its measured value and cos2β treated as an independent parameter, we find cos2β = 2.72-0.79+0.50(stat) ± 0.27(syst), determining the sign of cos2β to be positive at 86% C.L. © 2005 The American Physical Society.
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e+e- → π+π-π+π-, K+K-π+π-, and K+K-K+K- cross sections at center-of-mass energies 0.5-4.5 GeV measured with initial-state radiation -: art. no. 052001

PHYSICAL REVIEW D 71:5 (2005) ARTN 052001

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges-Pous, A Palano, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, AW Borgland, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, N Chevalier, WN Cottingham, MP Kelly, TE Latham, FF Wilson, T Cuhadar-Donszelmann, C Hearty, NS Knecht, TS Mattison, JA McKenna, D Thiessen, A Khan, P Kyberd, L Teodorescu, AE Blinov, VE Blinov, VP Druzhinin, VB Golubev, VN Ivanchenko, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bruinsma, M Chao, I Eschrich, D Kirkby, AJ Lankford, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, C Buchanan, BL Hartfiel, AJR Weinstein, SD Foulkes, JW Gary, O Long, BC Shen, K Wang, D del Re, HK Hadavand, EJ Hill, DB MacFarlane, HP Paar, S Rahatlou, V Sharma, JW Berryhill, C Campagnari, A Cunha, B Dahmes, TM Hong, A Lu, MA Mazur, JD Richman, W Verkerke, TW Beck, AM Eisner, CJ Flacco, CA Heusch, J Kroseberg, WS Lockman, G Nesom, T Schalk, BA Schumm, A Seiden, P Spradlin, DC Williams, MG Wilson, J Albert, E Chen, GP Dubois-Felsmann, A Dvoretskii, DG Hitlin, I Narsky, T Piatenko, FC Porter, A Ryd, A Samuel, S Yang, S Jayatilleke, G Mancinelli, BT Meadows, MD Sokoloff, F Blanc, P Bloom, S Chen, WT Ford, U Nauenberg, A Olivas, P Rankin, WO Ruddick, JG Smith, KA Ulmer, J Zhang, L Zhang, A Chen, EA Eckhart, JL Harton, A Soffer, WH Toki, RJ Wilson, Q Zeng, B Spaan, D Altenburg, T Brandt, J Brose, M Dickopp, E Feltresi, A Hauke, HM Lacker, E Maly, R Nogowski, S Otto, A Petzold, G Schott, J Schubert, KR Schubert, R Schwierz, JE Sundermann, D Bernard, GR Bonneaud, P Grenier, S Schrenk, C Thiebaux, G Vasileiadis, M Verderi, DJ Bard, PJ Clark, F Muheim, S Playfer, Y Xie, M Andreotti, V Azzolini, D Bettoni, C Bozzi, R Calabrese, G Cibinetto, E Luppi, M Negrini, L Piemontese, A Sarti, F Anulli, R Baldini-Ferroli, A Calcaterra, R de Sangro, G Finocchiaro, P Patteri, IM Peruzzi, M Piccolo, A Zallo, A Buzzo, R Capra, R Contri, G Crosetti, M Lo Vetere, M Macri, MR Monge, S Passaggio, C Patrignani, E Robutti, A Santroni, S Tosi, S Bailey, G Brandenburg, KS Chaisanguanthum, M Morii, E Won, RS Dubitzky, U Langenegger, J Marks, U Uwer, W Bhimji, DA Bowerman, PD Dauncey, U Egede, JR Gaillard, GW Morton, JA Nash, MB Nikolich, GP Taylor, MJ Charles, GJ Grenier, U Mallik, AK Mohapatra, J Cochran, HB Crawley, J Lamsa, WT Meyer, S Prell, EI Rosenberg, AE Rubin, J Yi, N Arnaud, M Davier, X Giroux, G Grosdidier, A Höcker, F Le Diberder, V Lepeltier, AM Lutz, TC Petersen, M Pierini, S Plaszczynski, MH Schune, G Wormser, CH Cheng, DJ Lange, MC Simani, DM Wright, AJ Bevan, CA Chavez, JP Coleman, IJ Forster, JR Fry, E Gabathuler, R Gamet, DE Hutchcroft, RJ Parry, DJ Payne, C Touramanis, CM Cormack, F Di Lodovico, CL Brown, G Cowan, RL Flack, HU Flaecher, MG Green, PS Jackson, TR McMahon, S Ricciardi, F Salvatore, MA Winter, D Brown, CL Davis, J Allison, NR Barlow, RJ Barlow, MC Hodgkinson, GD Lafferty, MT Naisbit, JC Williams, C Chen, A Farbin, WD Hulsbergen, A Jawahery, D Kovalskyi, CK Lae, V Lillard, DA Roberts, G Blaylock, C Dallapiccola, SS Hertzbach, R Kofler, VB Koptchev, TB Moore, S Saremi, H Staengle, S Willocq, R Cowan, K Koeneke, G Sciolla, SJ Sekula, F Taylor, RK Yamamoto, PM Patel, SH Robertson, A Lazzaro, V Lombardo, F Palombo, JM Bauer, L Cremaldi, V Eschenburg, R Godang, R Kroeger, J Reidy, DA Sanders, DJ Summers, HW Zhao, S Brunet, D Côté, P Taras, H Nicholson, N Cavallo, F Fabozzi, C Gatto, L Lista, D Monorchio, P Paolucci, D Piccolo, C Sciacca, M Baak, H Bulten, G Raven, HL Snoek, L Wilden, CP Jessop, JM LoSecco, T Allmendinger, G Benelli, KK Gan, K Honscheid, D Hufnagel, H Kagan, R Kass, T Pulliam, AM Rahimi, R Ter-Antonyan, QK Wong, J Brau, R Frey, O Igonkina, M Lu, CT Potter, NB Sinev, D Strom, E Torrence, F Colecchia, A Dorigo, E Galeazzi, M Margoni, M Morandin, M Posocco, M Rotondo, E Simonetto, R Stroili, C Voci, M Benayoun, H Briand, J Chauveau, P David, L Del Buono, C de la Vaissière, O Hamon, MJJ John, P Leruste, J Malclès, J Ocariz, L Roos, G Therin, PK Behera, L Gladney, QH Guo, J Panetta, M Biasini, R Covarelli, M Pioppi, C Angelini, G Batignani, S Bettarini, M Bondioli, F Bucci, G Calderini, M Carpinelli, F Forti, MA Giorgi, A Lusiani, G Marchiori, M Morganti, N Neri, E Paoloni, M Rama, G Rizzo, G Simi, J Walsh, M Haire, D Judd, K Paick, DE Wagoner, N Danielson, P Elmer, YP Lau, C Lu, V Miftakov, J Olsen, AJS Smith, AV Telnov, F Bellini, G Cavoto, A D'Orazio, E Di Marco, R Faccini, F Ferrarotto, F Ferroni, M Gaspero, LL Gioi, MA Mazzoni, S Morganti, G Piredda, F Polci, FS Tehrani, C Voena, G Cavoto, S Christ, H Schröder, G Wagner, R Waldi, T Adye, N De Groot, B Franek, GP Gopal, EO Olaiya, R Aleksan, S Emery, A Gaidot, SF Ganzhur, PF Giraud, G Graziani, GH de Monchenault, W Kozanecki, M Legendre, GW London, B Mayer, G Vasseur, C Yèche, M Zito, MV Purohit, AW Weidemann, JR Wilson, FX Yumiceva, T Abe, D Aston, R Bartoldus, N Berger, AM Boyarski, OL Buchmueller, R Claus, MR Convery, M Cristinziani, G De Nardo, JC Dingfelder, D Dong, J Dorfan, D Dujmic, W Dunwoodie, S Fan, RC Field, T Glanzman, SJ Gowdy, T Hadig, V Halyo, C Hast, T Hryn'ova, WR Innes, MH Kelsey, P Kim, ML Kocian, DWGS Leith, J Libby, S Luitz, V Luth, HL Lynch, H Marsiske, R Messner, DR Muller, CP O'Grady, VE Ozcan, A Perazzo, M Perl, BN Ratcliff, A Roodman, AA Salnikov, RH Schindler, J Schwiening, A Snyder, A Soha, J Stelzer, J Strube, D Su, MK Sullivan, J Va'vra, SR Wagner, M Weaver, WJ Wisniewski, M Wittgen, DH Wright, AK Yarritu, CC Young, J Strube, PR Burchat, AJ Edwards, SA Majewski, BA Petersen, C Roat, M Ahmed, S Ahmed, MS Alam, JA Ernst, MA Saeed, M Saleem, FR Wappler, W Bugg, M Krishnamurthy, SM Spanier, R Eckmann, H Kim, JL Ritchie, A Satpathy, RF Schwitters, JM Izen, I Kitayama, XC Lou, S Ye, F Bianchi, M Bona, F Gallo, D Gamba, L Bosisio, C Cartaro, F Cossutti, G Della Ricca, S Dittongo, S Grancagnolo, L Lanceri, P Poropat, L Vitale, G Vuagnin, F Martinez-Vidal, RS Panvini, S Banerjee, B Bhuyan, CM Brown, D Fortin, K Hamano, PD Jackson, R Kowalewski, JM Roney, RJ Sobie, JJ Back, PF Harrison, GB Mohanty, HR Band, X Chen, B Cheng, S Dasu, M Datta, AM Eichenbaum, KT Flood, M Graham, JJ Hollar, JR Johnson, PE Kutter, H Li, R Liu, A Mihalyi, Y Pan, R Prepost, P Tan, JH von Wimmersperg-Toeller, J Wu, SL Wu, Z Yu, MG Greene, H Neal
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